Question about 1989 GMC Sierra

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What transmission will fit in an 89 gmc sierra?

I need to replace a transmission in an 89 GMC Sierra. I am looking for one at a junk yard. What other years/models will work in this truck? Thanks.

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  • achja1 Mar 10, 2009

    350 engine, not shifting to 3rd gear

  • jduffey5 May 11, 2010

    I need some more info

    • what size engine do you have

    • is the truck 2 or 4 wheel drive

    • is your truck a 1500, 2500, or 3500 series

  • Pierce May 16, 2013

    it has a 383 strocker, its a 2 wheel drive and its a 1500

  • Pierce May 16, 2013

    yes, and i can feel it go into reverse but when i put my foot on the peddel a little bit it sounds like its in nutral

  • Anonymous Mar 19, 2014

    How do I check transmission fluid on 89 GMC stepside



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If it has a 4.3 liter motor a 86 to a 97 if it has a 350 motor a 81 to a 96 will work hope this helps

Posted on Nov 20, 2008

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1989 has 3 transmissions that fit, the 3 speed TH350, and TH400 (D, 2 &1) and if equiped with over drive or 4 spped the TH700 R4 (OD, 3, 2 & 1) Shift indicator will show which speed transmission you have but the fluid pan configuration idenfies the exact type of 3 or 4 speed.

Posted on Dec 12, 2015

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Will 1989 gmc transmission 1500 pick up fit 1992 gmc 1500 Yukon???

Posted on Sep 07, 2011

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